Browser error message: Page unresponsive.

### Current Behavior

Browser error message: Page unresponsive.

In my case, I used 10 meters to display real-time data. Initially, it displayed correctly, but after about 30 minutes, the meter data stopped updating. Clicking the page with the mouse displayed the "Page unresponsive" message. Refreshing the tab had no effect; I had to open a new tab for it to display correctly again. I believe this is a bug. I checked my computer and browser settings, avoiding putting the page in power-saving mode, but that didn't work.

Environment: Edge browser, Node-Red 5.0, Dashboard2 1.30.2

### Expected Behavior

_No response_

### Steps To Reproduce

_No response_

### Environment

- Dashboard version:1.30.2
- Node-RED version:5.0.0
- Node.js version:v24.16.0
- npm version:
- Platform/OS:win11
- Browser: Edge 149.0.4022.98

### Have you provided an initial effort estimate for this issue?

I can not provide an initial effort estimate

Start by reproducing the issue with 10 real-time meters in Dashboard2 1.30.2 on Node-RED 5.0.0 and Edge on Windows 11, observing whether updates stop after about 30 minutes. No file, test, or entry point is named; done means identifying and fixing the cause so the page remains responsive and meter data continues updating without requiring a new tab.

Written by the indexing model from the issue text.